212071561206 has 32 divisors (see below), whose sum is σ = 449232840288. Its totient is φ = 66511495680.

The previous prime is 212071561199. The next prime is 212071561217. The reversal of 212071561206 is 602165170212.

212071561206 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212071561206³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5796 + ... + 651288.

It is an arithmetic number, because the mean of its divisors is an integer number (14038526259).

Almost surely, 2^212071561206 is an apocalyptic number.

212071561206 is an abundant number, since it is smaller than the sum of its proper divisors (237161279082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212071561206 is a wasteful number, since it uses less digits than its factorization.

212071561206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648736.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 212071561206 in words is "two hundred twelve billion, seventy-one million, five hundred sixty-one thousand, two hundred six".